Yoku is putting on sunscreen. he uses 2 ml to cover 50 cm(2) his skin. he wants to know how many milliliters of sunscreen (c) he needs to cover 325 cm(2) of his skin. how many milliliters of sunscreen does yoku need to cover 325 cm(2) of his skin?

Therefore 13 milliliters of sunscreen he needs to cover 325 cm² of the skin.

Step-by-step explanation:

Find out the how many milliliters of sunscreen he needs to cover 325 cm² of the skin.

To prove

As given

Yoku Is putting on sunscreen.

He uses 2 ml of suncream to cover 50 cm² of his skin.

Now for 1 ml of suncream

1ml = 25 cm²

Thus for Yoku Is putting 1ml of sunscreen  to cover 25 cm² of his skin.

Let us assume that the  milliliters of sunscreen he needs to cover 325 cm² of the skin be x .

Now  Find out the  how many milliliters of sunscreen he needs to cover 325 cm² of the skin.

Than the equation becomes

25 × x =325

x = 13 milliliters .

Therefore 13 milliliters of sunscreen he needs to cover 325 cm² of the skin.

13

Step-by-step explanation:

khan academy :)

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x